CN102823290B - Wireless communications method, mobile station apparatus, wireless communication system and integrated circuit - Google Patents

Abstract

Use multiple downlink component carrier to carry out in the wireless communication system communicated at mobile station apparatus and base station apparatus, carry out the control of the re-transmission of PUSCH efficiently.Carry out in the mobile station apparatus communicated in the multiple downlink component carrier of use and multiple uplink component carrier with base station apparatus, when being set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, to be set as that the content of harq buffer device that the downlink component carrier of the communication being not used in described down link is associated, uplink component carrier is removed.

Description

Wireless communications method, mobile station apparatus, wireless communication system and integrated circuit

Technical field

The present invention relates to wireless communications method, mobile station apparatus, wireless communication system and integrated circuit.

Background technology

Inquired in third generation partner program (3rdGenerationPartnershipProject:3GPP) wireless access way of cellular mobile communication and wireless network evolution (hereinafter referred to as " " Long Term Evolution (LTE) " or " the Universal Terrestrial wireless access (EUTRA) of evolution ".)。In LTE, OFDM (OrthogonalFrequencyDivisionMultiplexing:OFDM) mode being used as multicarrier to send is used as the communication mode of the radio communication (down link) from base station apparatus to mobile station apparatus.In addition, SC-FDMA (single-carrier frequency division multiple access access) mode being used as single carrier to send is used as the communication mode of the radio communication (up link) from mobile station apparatus to base station apparatus.

In LTE, the initialization of the channel that base station apparatus uses the down link control information (DownlinkControlInformation:DCI) that sends with PDCCH (physical downlink control channel) to send mobile station apparatus instruction uplink data (transmission block: Transportblock) and PUSCH (physical uplink link shared channels) or re-transmission.In addition, base station apparatus receives the PUSCH sent by mobile station apparatus, and sends HARQ (hybrid automatic repeat-request) designator of the success or failure of the decoding representing PUSCH with PHICH (physics HARQ indicator channel).

HARQ indicator represents ACK or NACK.When base station apparatus is to the successfully decoded of PUSCH, HARQ indicator represents ACK (affirmative acknowledgement), in the kaput situation of the decoding of base station apparatus to PUSCH, HARQ indicator represents NACK (negative response).

First mobile station apparatus carries out the detection of signal on PHICH.Mobile station apparatus detects signal on PHICH, for HARQ feedback, ACK or NACK shown in the HARQ indicator received with PHICH is arranged.Mobile station apparatus does not detect signal on PHICH, do not carry out any setting (keeping the state of HARQ feedback) for HARQ feedback.

Then, mobile station apparatus carries out the detection of down link control information.Mobile station apparatus is when receiving the down link control information of the initialization being used to indicate PUSCH, the uplink data that will send with PUSCH is determined, and this uplink data is stored to harq buffer device, carry out the initialization of PUSCH according to down link control information, and NACK is set is used as HARQ feedback.Mobile station apparatus is when receiving the down link control information of the re-transmission being used to indicate PUSCH, according to down link control information, carry out the re-transmission of the uplink data stored in harq buffer device with PUSCH, and NACK is set is used as HARQ feedback.In addition, mobile station apparatus is when the down link control information of initialization or the re-transmission being used to indicate PUSCH being detected, action is not carried out based on the HARQ indicator received with PHICH (ACK or NACK namely, be set up as HARQ feedback).

Mobile station apparatus, when not receiving the down link control information for PUSCH, carries out the transmission of PUSCH based on set HARQ feedback.When NACK is set up as HARQ feedback, mobile station apparatus carries out the re-transmission of PUSCH, when ACK is set up as HARQ feedback, and the data that the transmission and keeping that mobile station apparatus does not carry out PUSCH stores in harq buffer device.When NACK is set up as HARQ feedback, to receive with PHICH represent ACK HARQ indicator or to newly receiving the down link control information for PUSCH with PDCCH, all carry out the re-transmission of PUSCH based on the down link control information finally received.Such as, mobile station apparatus does not detect signal under the state that NACK is set up as HARQ feedback on PHICH, the re-transmission of PUSCH is carried out.

In 3 gpp, inquire into and utilized the frequency band wider than LTE to realize the wireless access way of the communication of data more at a high speed and wireless network (hereinafter referred to as " advanced LTE (LTE-A) " or " advanced EUTRA (A-EUTRA) ".)。In LTE-A, seek the backwards compatibility (backwardcompatibility) had between LTE, namely, the mobile station apparatus that the base station apparatus of LTE-A can carry out radio communication and LTE-A with the mobile station apparatus of LTE-A and LTE simultaneously can carry out radio communication with the base station apparatus of LTE-A and LTE, has therefore inquired into LTE-A and has used the channel architecture identical with LTE.

In LTE-A, inquire into frequency band to the channel architecture identical with LTE (hereinafter referred to as " component carrier (member carrier; CC) ".) carry out polymerization and be used as technology that 1 frequency band (frequency band in broadband) carries out using (frequency band is polymerized; Also referred to as spectrum aggregating, carrier aggregation, frequency polymerization etc.)。Specifically, in the communication employing frequency band polymerization, send the channel of down link by each downlink component carrier, and send the channel of up link by each uplink component carrier.Namely, frequency band polymerization is following technology: in uplink and downlink, base station apparatus and multiple mobile station apparatus use multiple component carrier to receive and dispatch multiple data or multiple control information as multiple channel simultaneously.

In the communication employing frequency band polymerization, propose base station apparatus and use RRC signal (wireless heterogeneous networks signal) etc. to mobile station apparatus setting for the downlink component carrier that communicates and uplink component carrier, and use PDCCH or MAC (M AC) CE (control unit) etc. notify among the downlink component carrier after this setting, the activation command (activationcommand) that represents for the downlink component carrier of the communication of down link.(non-patent literature 1)

Look-ahead technique document

Non-patent literature

Non-patent literature 1: " Openissuesoncomponentcarrieractivationanddeactivation ", 3GPPTSGRANWG2Meeting#69, R2-101082, February22-26,2010.

The problem that invention will solve

But, there are the following problems in the prior art: in mobile station apparatus, if under the state that the HARQ feedback be associated with the PUSCH sent with up link has been set up NACK by for this PUSCH downlink component carrier from be used for down link communication downlink component carrier among get rid of, then mobile station apparatus independently to carry out the re-transmission of PUSCH repeatedly with base station apparatus to the success or failure of the decoding of PUSCH.

Summary of the invention

The present invention proposes in view of above-mentioned point, its object is to, provide a kind of and use multiple downlink component carrier to carry out carrying out efficiently in the wireless communication system communicated the wireless communications method of the control of the re-transmission of PUSCH, mobile station apparatus, wireless communication system and integrated circuit at mobile station apparatus and base station apparatus.

For solving the means of problem

(1) in order to reach above-mentioned object, the present invention possesses following means.Namely, wireless communications method of the present invention is a kind of wireless communications method for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described wireless communications method is, comprise: when being set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, to be set as what the downlink component carrier of the communication being not used in described down link was associated, the content of the harq buffer device of uplink component carrier carries out the step removed.

(2) in addition, mobile station apparatus of the present invention is that a kind of multiple downlink component carrier and multiple uplink component carrier of using carrys out the mobile station apparatus carrying out with base station apparatus communicating, it is characterized in that, when being set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, to be set as that the content of harq buffer device that the downlink component carrier of the communication being not used in described down link is associated, uplink component carrier is removed.

(3) in addition, wireless communication system of the present invention is that a kind of mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to carry out the wireless communication system communicated with base station apparatus, the feature of described wireless communication system is, described mobile station apparatus is when being set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, to be set as what the downlink component carrier of the communication being not used in described down link was associated, the content of the harq buffer device of uplink component carrier is removed, when described mobile station apparatus is set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, described base station apparatus is judged as that described mobile station apparatus removes and is set as what the downlink component carrier of the communication being not used in described down link was associated, the content of the harq buffer device of uplink component carrier.

(4) in addition, integrated circuit of the present invention is a kind of integrated circuit for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described integrated circuit is, have: when being set as that the downlink component carrier corresponding to described uplink component carrier is not used in the communication of down link, to be set as what the downlink component carrier of the communication being not used in described down link was associated, the content of the harq buffer device of uplink component carrier carries out the function removed.

(5) in addition, wireless communications method of the present invention is a kind of wireless communications method for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described wireless communications method is, comprise: in deexcitation during the downlink component carrier corresponding to described uplink component carrier, to be associated with the described downlink component carrier after deexcitation, step that the content of the harq buffer device of uplink component carrier is removed.

(6) in addition, in wireless communications method of the present invention, it is characterized in that, comprising: time notified in the order by sending from described base station apparatus, downlink component carrier being carried out to the step of deexcitation.

(7) in addition, in wireless communications method of the present invention, it is characterized in that, comprise: in the order by sending from described base station apparatus notified and from activation downlink component carrier, have passed through the given time, the step of deexcitation is carried out to the described downlink component carrier after activating.

(8) in addition, in wireless communications method of the present invention, it is characterized in that, comprise: when from receive with downlink component carrier have passed through the given time the physical downlink control channel that sends from described base station apparatus, the downlink component carrier receiving described physical downlink control channel is carried out to the step of deexcitation.

(9) in addition, mobile station apparatus of the present invention is that a kind of multiple downlink component carrier and multiple uplink component carrier of using carrys out the mobile station apparatus carrying out with base station apparatus communicating, it is characterized in that, in deexcitation during the downlink component carrier corresponding to described uplink component carrier, to be associated with the described downlink component carrier after deexcitation, the content of the harq buffer device of uplink component carrier removes.

(10) in addition, wireless communication system of the present invention is that a kind of mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to carry out the wireless communication system communicated with base station apparatus, it is characterized in that, described mobile station apparatus is in deexcitation during the downlink component carrier corresponding to described uplink component carrier, to what be associated with the described downlink component carrier after deexcitation, the content of the harq buffer device of uplink component carrier is removed, in described mobile station apparatus deexcitation during the downlink component carrier corresponding to described uplink component carrier, described base station apparatus is judged as that described mobile station apparatus removes and is associated with the described downlink component carrier after deexcitation, the content of the harq buffer device of uplink component carrier.

(11) in addition, integrated circuit of the present invention is a kind of integrated circuit for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described integrated circuit is, have: in deexcitation during the downlink component carrier corresponding to described uplink component carrier, to be associated with the described downlink component carrier after deexcitation, function that the content of the harq buffer device of uplink component carrier is removed.

(12) in addition, wireless communications method of the present invention is a kind of wireless communications method for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier to communicate with base station apparatus, the feature of described wireless communications method is, comprise: when the downlink component carrier received the HARQ indicator for the uplink data being sent to described base station apparatus has been deactivated, do not receive described HARQ indicator and the step of ACK is set.

(13) in addition, mobile station apparatus of the present invention is that a kind of multiple downlink component carrier and base station apparatus of using carries out the mobile station apparatus communicated, it is characterized in that, when the downlink component carrier received the HARQ indicator for the uplink data being sent to described base station apparatus has been deactivated, does not receive described HARQ indicator and ACK has been set.

(14) in addition, wireless communication system of the present invention is that a kind of mobile station apparatus uses multiple downlink component carrier to carry out with base station apparatus the wireless communication system communicated, it is characterized in that, when the downlink component carrier received the HARQ indicator for the uplink data being sent to described base station apparatus by described mobile station apparatus has been deactivated, described mobile station apparatus does not receive described HARQ indicator and arranges ACK, and described base station apparatus is judged as: described mobile station apparatus does not receive described HARQ indicator and is provided with ACK.

(15) in addition, integrated circuit of the present invention is a kind of integrated circuit for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier to communicate with base station apparatus, the feature of described integrated circuit is, have: when the downlink component carrier received the HARQ indicator for the uplink data being sent to described base station apparatus has been deactivated, do not receive described HARQ indicator and the function of ACK is set.

Invention effect

According to the present invention, use multiple downlink component carrier to carry out in the wireless communication system communicated at mobile station apparatus and base station apparatus, mobile station apparatus can carry out the re-transmission of PUSCH efficiently.

Accompanying drawing explanation

Fig. 1 is the concept map of the wireless communication system involved by the 1st execution mode of the present invention.

Fig. 2 is the figure of the example representing frequency band of the present invention polymerization process.

Fig. 3 is the skeleton diagram of an example of the formation of the radio frames representing down link of the present invention.

Fig. 4 is the skeleton diagram of an example of the formation of the radio frames representing up link of the present invention.

Fig. 5 is the skeleton diagram of the HARQ process for illustration of up link of the present invention.

Fig. 6 is the flow chart of an example of the action representing mobile station apparatus 1 of the present invention.

Fig. 7 is the schematic block diagram of the formation representing mobile station apparatus 1 of the present invention.

Fig. 8 is the schematic block diagram of the formation representing base station apparatus 3 of the present invention.

Fig. 9 is the flow chart of an example of the action of the mobile station apparatus 1 representing the 2nd execution mode of the present invention.

Embodiment

(the 1st execution mode)

Below, the 1st execution mode of the present invention is described in detail with reference to accompanying drawing.

Fig. 1 is the concept map of the wireless communication system involved by the 1st execution mode of the present invention.In FIG, wireless communication system possesses: mobile station apparatus 1A ~ 1C and base station apparatus 3.Fig. 1 shows, in the radio communication (down link) from base station apparatus 3 to mobile station apparatus 1A ~ 1C, be assigned: synchronizing signal (Synchronizationsignal:SS), downlink reference signal (DownlinkReferenceSignal:DLRS), Physical Broadcast Channel (PhysicalBroadcastChannel:PBCH), physical downlink control channel (PhysicalDownlinkControlChannel:PDCCH), physical down link sharing channel (PhysicalDownlinkSharedChannel:PDSCH), Physical Multicast Channel (PhysicalMulticastChannel:PMCH), physical control format indicator channel (PhysicalControlFormatIndicatorChannel:PCFICH), physics HARQ indicator channel (PhysicalHybridARQIndicatorChannel:PHICH).

In addition, Fig. 1 shows, in the radio communication (up link) from mobile station apparatus 1A ~ 1C to base station apparatus 3, be assigned: uplink reference signals (UplinkReferenceSignal:ULRS), physical uplink control channel (PhysicalUplinkControlChannel:PUCCH), physical uplink link shared channels (PhysicalUplinkSharedChannel:PUSCH), Physical Random Access Channel (PhysicalRandomAccessChannel:PRACH).Below, mobile station apparatus 1A ~ 1C is called mobile station apparatus 1.

Fig. 2 is the figure of the example representing frequency band of the present invention polymerization process.In fig. 2, transverse axis represents frequency domain, and the longitudinal axis represents time domain.As shown in Figure 2, the subframe D1 of down link is by 4 downlink component carrier (DLCC-1 with 20MHz bandwidth; DownlinkComponentCarrier-1, DLCC-2, DLCC-3, DLCC-4) subframe form.Have in each subframe of this downlink component carrier: the region of having carried out the configuration PHICH shown in region of shadowed with latticed line, carried out shadowed with upper right oblique line the configuration PDCCH shown in region region and do not carry out the region of the configuration PDSCH shown in region of shadowed.The region of configuration PHICH and the region of configuration PDCCH are by channeling and/or time-multiplexed.PHICH and PDCCH is by channeling and/or time-multiplexed region, be time-multiplexed with the region of configuration PDSCH.

On the other hand, the subframe U1 of up link is by 3 uplink component carrier (ULCC-1 with 20MHz bandwidth; UplinkComponentCarrier-1, ULCC-2, ULCC-3) form.In each subframe of this uplink component carrier, carried out the region of the configuration PUCCH shown in region of shadowed with bottom right oblique line, with the region of the configuration PUSCH shown in the region of having carried out shadowed with horizontal line by channeling.

First, mobile station apparatus 1 uses the downlink component carrier of wantonly 1 group and uplink component carrier to carry out the initial access with base station apparatus 3.Base station apparatus 3 has carried out the PDSCH of the downlink component carrier of initial access and the RRC signal (RadioResourceControlsignal) that sends to use by mobile station apparatus 1, mobile station apparatus 1 is notified that the downlink component carrier that set and uplink component carrier are (hereinafter referred to as " set component carrier (configuredcomponentcarrier) ".)。

Base station apparatus 3 use PDCCH or MAC (M AC) CE (Channel Elements) etc. notify among set downlink component carrier, the activation command (activationcommand) that represents for the downlink component carrier of the communication of down link.Such as, activation command is made up of bit diagram, when the value with each self-corresponding bit of downlink component carrier is " 1 ", represent that this downlink component carrier will be used for the communication of down link, and when the value of bit is " 0 ", represent that this downlink component carrier is not used in the communication of down link.Application activating order such as (such as, after 1 subframe or after 4 subframes) from receiving activation command after the given time.In addition, PDSCH is used to send MACCE.

With activation command, base station apparatus 3 pairs of mobile station apparatus 1 are notified that situation that downlink component carrier will be used for the communication of down link is called activate (activate) downlink component carrier.With activation command, base station apparatus 3 pairs of mobile station apparatus 1 are notified that situation that downlink component carrier is not used in the communication of down link is called deexcitation (deactivate) is carried out to downlink component carrier.

The downlink component carrier be activated is called the downlink component carrier after activation (activateddownlinkcomponentcarrier) or the downlink component carrier after activating through setting (configuredandactivateddownlinkcomponentcarrier), the component carrier be deactivated is called the downlink component carrier after deexcitation (deactivateddownlinkcomponentcarrier) or the downlink component carrier through setting after deexcitation (configuredanddeactivateddownlinkcomponentcarrier).

Mobile station apparatus 1 can carry out deexcitation by the method diverse ways downlink component carrier after be notified of the communication being not used in down link with activation command being carried out to deexcitation to downlink component carrier.Such as, mobile station apparatus 1 both can when having carried out deexcitation from when have activated with activation command and have passed through the given time downlink component carrier to downlink component carrier, also can carry out deexcitation from when finally receiving with the downlink component carrier after activating and have passed through the given time PDCCH or PDSCH to downlink component carrier.Namely, mobile station apparatus 1 can rely on the judgement of self to carry out deexcitation to downlink component carrier.In addition, base station apparatus 3 can set the above-mentioned given time, and by comprise this setting information with RRC signal to inform to mobile station apparatus 1.

Mobile station apparatus 1 does not receive the signal of the downlink component carrier after deexcitation.Base station apparatus 3 is judged as that mobile station apparatus 1 does not receive the signal of the downlink component carrier after deexcitation.Such as, among the downlink component carrier after signal (PDSCH, PDCCH, PHICH etc.) is configured at activation by base station apparatus 3 in the subframe of down link, one or more downlink component carrier, and send to mobile station apparatus 1.Mobile station apparatus 1 only carries out monitoring and receiving process for the signal (PDSCH, PDCCH, PHICH etc.) of the downlink component carrier after activation.

Base station apparatus 3 sets down link principal component carrier wave (downlinkprimarycomponentcarrier:DLPCC) and up link principal component carrier wave uplinkprimarycomponentcarrier:ULPCC by each mobile station apparatus 1 among set downlink component carrier and uplink component carrier), and the RRC signal comprising the information relevant to this setting is informed to mobile station apparatus 1.The downlink component carrier and uplink component carrier that are used for initial access are all set as down link principal component carrier wave and up link principal component carrier wave by mobile station apparatus 1 till down link principal component carrier wave and up link principal component carrier wave are set.

Base station apparatus 3 can not carry out deexcitation to down link principal component carrier wave, and namely down link principal component carrier wave must be activated.Up link principal component carrier wave is for sending uplink control information.

Base station apparatus 3 distributes the Radio Resource of the PUSCH of one or more uplink component carrier among set uplink component carrier in the subframe of up link, sends the down link control information (DownlinkControlInformation:DCI) of the distribution of the Radio Resource represented for this PUSCH with the PDCCH of the downlink component carrier after activating.Mobile station apparatus 1, according to the down link control information of the distribution of the Radio Resource of expression PUSCH, by the PUSCH of one or more uplink component carrier of signal configures among set uplink component carrier, and sends to base station apparatus 3.

In addition, in the subframe of down link, the down link control information for the PDSCH of downlink component carrier, the PUSCH of uplink component carrier uses the PDCCH of any one downlink component carrier among the downlink component carrier after activating through setting and is sent to mobile station apparatus 1.The PDCCH of the PDCCH for the PDSCH of downlink component carrier and the PUSCH for uplink component carrier can be configured in different downlink component carrier by each subframe.

Namely, both can not with 1 downlink component carrier, also can not be sent simultaneously with multiple downlink component carrier relative to 1 PDSCH of downlink component carrier or 1 PUSCH of uplink component carrier, multiple PDCCH.Such as, in fig. 2, in the subframe of down link, the PDCCH of the PUSCH for ULCC-1 is sent with the PDCCH of the downlink component carrier of in DLCC-1 to DLCC-4 (DLCC-1 or DLCC-2 or DLCC-3 or DLCC-4).

In addition, can the downlink component carrier that can send for the PDCCH of the PDSCH of downlink component carrier or the PUSCH of uplink component carrier be limited.Such as, in fig. 2, can be restricted to: the PDCCH only sending the PUSCH for ULCC-1 by each subframe with the downlink component carrier of in DL-CC1 and DLCC2.In addition, the PDCCH only sending the PUSCH for ULCC-1 by each subframe with DLCC-1 can be restricted to.

HARQ (hybrid automatic repeat-request) designator of the success or failure of the decoding of the PUSCH that expression is sent by mobile station apparatus 1 with uplink component carrier, the PHICH being the downlink component carrier of the PDCCH that have finally transmitted for this PUSCH carries out sending.Such as, in fig. 2, when mobile station apparatus 1 finally receive PDCCH for the PUSCH of ULCC-1 with DLCC-1 and with ULCC-1 have sent PUSCH, send the HARQ indicator for this PUSCH with the PHICH of DLCC-1.When the successfully decoded of base station apparatus 3 couples of PUSCH, HARQ indicator represents ACK (affirmative acknowledgement), in the kaput situation of the decoding of base station apparatus to PUSCH, HARQ indicator represents NACK (negative response).

Fig. 3 is the skeleton diagram of an example of the formation of the radio frames representing down link of the present invention.Fig. 3 represents the formation of the radio frames in downlink component carrier.In figure 3, transverse axis is time domain, and the longitudinal axis is frequency domain.As shown in Figure 3, the radio frames of downlink component carrier is by the Physical Resource Block (PhysicalResourceBlock of multiple down link; PRB) (such as, with the region that the dotted line of Fig. 3 surrounds) is formed.The Physical Resource Block of this down link to the unit of distribution etc. being Radio Resource, by frequency band (the PRB bandwidth of preset width; 180kHz) and time-bands (2 time slot=1 subframes; 1ms) form.

The Physical Resource Block of 1 down link is formed by the Physical Resource Block (PRB bandwidth × time slot) of 2 down links of continuous print in time domain.The Physical Resource Block of 1 down link (in figure 3, unit so that thick line surrounds) be made up of 12 subcarriers (15kHz) on frequency domain, time domain is made up of 7 OFDM (OFDM) symbols (71 μ s).

In time domain, exist: the time slot (0.5ms) be made up of 7 OFDM symbol (71 μ s), the subframe (1ms) be made up of 2 time slots, the radio frames (10ms) be made up of 10 subframes.To be that the 1ms in identical time interval is also referred to as transmission time interval (TransmitTimeInterval:TTI) with subframe.On frequency domain, be configured with the Physical Resource Block of multiple down link according to the bandwidth of downlink component carrier.In addition, the assembly be made up of 1 subcarrier and 1 OFDM symbol is called the resource element of down link.

Below, be described for the channel distributed in the radio frames of down link.In each subframe of down link, such as, be assigned PDCCH, PHICH, PDSCH and downlink reference signal.First, be described for PDCCH.From the OFDM symbol of the file leader of subframe, (in figure 3, carry out the region of shadowed with upper right oblique line) configure PDCCH.In addition, the number of the OFDM symbol of configuration PDCCH is 1 to 3, different by each subframe.In PDCCH, be configured with and distribute (Downlinkassignment, or permit also referred to as down link with down link.), the information format of up link license (Uplinkgrant) etc. form, the signal of the information that uses in the control of communication and down link control information.In addition, in each subframe, in each downlink component carrier, multiple PDCCH is by channeling and time-multiplexed.

Down link distribute by for the modulation system of PDSCH and relevant information of encode, represents the distribution of Radio Resource information, and the HARQ of expression initialization or re-transmission etc. the information, TPC command etc. of being correlated with form.In addition, up link license by for the modulation system of PUSCH and relevant information of encode, represents the distribution of Radio Resource information, and the HARQ of expression initialization or re-transmission etc. the information, TPC command etc. of being correlated with form.In addition, HARQ refers to following technology: such as, the HARQ feedback of the success or failure representing the decoding of data is sent to base station apparatus 3 (mobile station apparatus 1) by mobile station apparatus 1 (base station apparatus 3), when mobile station apparatus 1 (base station apparatus 3) because of mistake and can not to decoding data (NACK), by base station apparatus 3 (mobile station apparatus 1) re-transmitted signal, and by mobile station apparatus 1 (base station apparatus 3), with the composite signal of the signal to have received, decoding is carried out to the signal again received and process.

Distribute in the information relevant to HARQ of permitting with up link at formation down link and comprise NDI (new data indicator).Mobile station apparatus 1, when receiving down link distribution or up link license, stores contained NDI in the down link distribution received or up link license.Now, mobile station apparatus 1 determined after whether NDI be reversed (toggle) when storing NDI, rewrite and be covered into new NDI.

Mobile station apparatus 1, when NDI has been reversed, is judged to be that down link distributes or up link license represents initialization, and when NDI is not reversed, is judged to be that down link distribution or up link license represent and retransmits.NDI is reversed and refers to, the NDI stored is different from the value of the NDI received, and NDI is not reversed and refers to, the NDI stored is identical with the value of the NDI received.Below, the situation that contained NDI in down link distribution or up link license has been reversed is called down link distributes or up link license indicates initialization, and the situation be not reversed by NDI is called that down link distribution or up link license indicate re-transmission.

Coding method for down link control information is described.First, the sequence that base station apparatus 3 obtains carrying out scrambling (scramble) with RNTI (Radio Network Temporary Identifier) to the cyclic redundancy check (CRC) generated based on down link control information (CyclicRedundancyCheck:CRC) code is attached in down link control information.Mobile station apparatus 1 is carry out the explanation of changing down link control information of scrambling with any RNTI according to cyclic redundancy check (CRC) code.Such as, mobile station apparatus 1 when cyclic redundancy check (CRC) code with the C-RNTI distributed this device by base station apparatus 3 (community-RNTI Radio Network Temporary Identifier) by scrambling, what be judged as that down link control information represents is the Radio Resource mailing to this device.Below, the situation being attached with the cyclic redundancy check (CRC) code after carrying out scrambling with RNTI in down link control information is only shown as and contain RNTI containing RNTI or in PDCCH in down link control information.

Mobile station apparatus 1 couple of PDCCH carries out decoding process, the RNTI stored with this device carries out descrambling (descramble) to the sequence being equivalent to carry out with RNTI the cyclic redundancy check (CRC) code after scrambling, and is judged as that obtaining of PDCCH is successful when detecting be free from mistakes based on the cyclic redundancy check (CRC) code after descrambling.This process is called blind Detecting (blinddecoding).

Next, PHICH is described.In each subframe, PHICH and PDCCH in same OFDM symbol by channeling (in figure 3, having carried out the region of shadowed with latticed line).PHICH both can be only configured at the OFDM symbol of the file leader of subframe, also can by decentralized configuration in multiple OFDM symbol.PHICH is configured with the HARQ indicator of the success or failure (ACK/NACK) of the decoding representing PUSCH.In addition, in each subframe, in each downlink component carrier multiple PHICH by channeling and code multiplexing.

Represent the HARQ indicator of the success or failure of the decoding of the PUSCH sent by mobile station apparatus 1 with uplink component carrier, being that the PHICH of identical downlink component carrier sends with have finally transmitted the downlink component carrier of permitting for the up link of this PUSCH.In addition, HARQ indicator for PUSCH is configured in which PHICH in downlink component carrier actually, is to decide according to numbering the information that in the numbering of minimum (minimum frequency domain) Physical Resource Block and up link license, contained cyclic shift of carrying out time-multiplexed uplink reference signals to PUSCH is relevant among the Physical Resource Block distributing to this PUSCH.

Mobile station apparatus 1 receives the HARQ feedback for this PUSCH with the PHICH of the subframe of the down link from (such as, after 4ms, after 4 subframes, after 4TTI) after sending and have passed through the given time PUSCH.In uplink reference signals, use code multiplexing, use multiple different code.Such as, multiple different code periodically offsets (being called cyclic shift) to generate by making predetermined basic sequence, generates different codes by the cyclic shift of different side-play amounts.

Next, be described for PDSCH.PDSCH is configured in the OFDM symbol (in figure 3, not carrying out the region of shadowed) beyond the OFDM symbol of configuration PDCCH and/or PHICH of subframe.On PDSCH, configuring downlink data (or to be called " transmission block (TransportBlock) ".) signal.Down link is used to distribute the Radio Resource distributing PDSCH.The Radio Resource of PDSCH is configured in and is distributed in the down link used in the distribution comprising this PDSCH the subframe that interior PDCCH is identical down link in time domain, and frequency domain being configured in and being distributed in interior PDCCH from the down link used in the distribution comprising this PDSCH is identical downlink component carrier or different downlink component carrier.

Down link distribute in containing represent this down link dispense needles right be that the information of the PDSCH of which downlink component carrier is (hereinafter referred to as " downlink carrier designator (downlinkcarrierindicator) ".)。When not comprising downlink carrier designator during down link distributes, send the PDSCH corresponding to the down link distribution and the distribution of this down link not comprising downlink carrier designator with identical downlink component carrier.In each subframe, in each downlink component carrier, multiple PDSCH is by channeling and spatial reuse.About downlink reference signal, although eliminate diagram for the purpose of simplifying the description and in figure 3, downlink reference signal is decentralized configuration over the frequency domain.

Fig. 4 is the skeleton diagram of an example of the formation of the radio frames representing up link of the present invention.Fig. 4 represents the formation of the radio frames in uplink component carrier.In the diagram, transverse axis is time domain, and the longitudinal axis is frequency domain.As shown in Figure 4, the radio frames of up link is made up of (such as, with the region that the dotted line of Fig. 4 surrounds) the Physical Resource Block of multiple up link.The Physical Resource Block of this up link, to the unit of distribution etc. being Radio Resource, is made up of the frequency band (PRB bandwidth: 180kHz) of preset width and time-bands (2 time slot=1 subframe: 1ms).

The Physical Resource Block of 1 up link is formed by the Physical Resource Block (PRB bandwidth × time slot) of 2 up links of continuous print in time domain.The Physical Resource Block (in the diagram, the unit surrounded with thick line) of 1 up link is made up of 12 subcarriers (15kHz) on frequency domain, and time domain is made up of 7 SC-FDMA symbols (71 μ s).

Time domain exists: the time slot (0.5ms) be made up of 7 SC-FDMA (single-carrier frequency division multiple access access) symbol (71 μ s), the subframe (1ms) be made up of 2 time slots, the radio frames (10ms) be made up of 10 subframes.To be that the 1ms in identical time interval is also referred to as transmission time interval (TransmitTimeInterval:TTI) with subframe.On frequency domain, be configured with the Physical Resource Block of multiple up link according to the bandwidth of uplink component carrier.In addition, the assembly be made up of 1 subcarrier and 1 SC-FDMA symbol is called the resource element of up link.

Below, be described for the channel distributed in the radio frames of up link.In each subframe of up link, such as, be assigned PUCCH, PUSCH and uplink reference signals.First, be described for PUCCH.PUCCH is assigned to the Physical Resource Block of the up link at the two ends of the frequency band of uplink component carrier to (having carried out the region of shadowed with upper right oblique line).PUCCH configures: the information representing the channel quality information (ChannelQualityInformation) of the channel quality of down link, represent the dispatch request (SchedulingRequest:SR) of the request of the distribution of the Radio Resource of up link, use in control for the communication such as ACK/NACK of PDSCH and the signal of uplink control information (UplinkControlInformation:UCI).In each subframe, in each uplink component carrier multiple PUCCH by channeling and code multiplexing.

Next, PUSCH is described.PUSCH is assigned to the Physical Resource Block of the up link beyond the Physical Resource Block of the up link of configuration PUCCH to (region of non-shadowed).Information on PUSCH beyond collocating uplink link control message and uplink control information and the signal of uplink data (transmission block: TransportBlock).The Radio Resource of PUSCH uses up link license and is assigned with, and to be configured in from the subframe of the down link being configured with the PDCCH comprising the license of this up link after given time the subframe of the up link of (such as, after 4ms, after 4 subframes, after 4TTI).

Up link license in containing represent this up link license for be that the information of the PUSCH of which uplink component carrier is (hereinafter referred to as " uplink carrier designator (uplinkcarrierindicator) ".)。In addition, when not comprising uplink carrier designator in up link license, establish corresponding downlink component carrier in advance to send with the uplink component carrier corresponding to permitting with this up link the up link not comprising uplink carrier designator and permit.In each subframe, in each uplink component carrier, multiple PUSCH is by channeling and spatial reuse.Although undertaken time-multiplexed by uplink reference signals and PUCCH or PUSCH, omit detailed description for the purpose of simplifying the description.

Fig. 5 is the skeleton diagram of the HARQ process for illustration of up link of the present invention.In Figure 5, transverse axis is time domain, the quadrangle having carried out shadowed with latticed line represents PHICH, the quadrangle having carried out shadowed with upper right oblique line represents PDCCH (up link license), the quadrangle having carried out shadowed with horizontal line represents PUSCH, and the numbering of giving PHICH, PDCCH and PUSCH represents the numbering of the HARQ process corresponding to each channel.In the present invention, for each uplink component carrier, multiple (8) HARQ process is action simultaneously independently.

The numbering of HARQ process corresponding to PUSCH is set up corresponding with the numbering of the subframe of up link.Such as, the remainder values obtained except the numbering of subframe with the number of the HARQ process of action simultaneously in uplink component carrier is set to the numbering of the HARQ process in the uplink component carrier corresponding with this subframe.The numbering of HARQ process corresponding to PHICH and PDCCH (up link license) is set up corresponding with the numbering of the subframe of down link.The numbering of HARQ process corresponding in uplink and downlink offset by 4.

The HARQ process be associated from different uplink component carrier can perform in same subframe simultaneously.Such as, when mobile station apparatus 1 and base station apparatus 3 use 3 uplink component carrier to communicate as shown in Figure 2, the HARQ process of 8 × 3=24 will action simultaneously independently.For the purpose of simplifying the description, the PUSCH of 1 uplink component carrier is only shown in Figure 5.

HARQ process is associated with 1 harq buffer device respectively.The uplink data sent with PUSCH (transmission block) is saved to the harq buffer device of the HARQ process corresponding with this PUSCH by mobile station apparatus 1, and preserve the up link license finally received with the PDCCH of correspondence, and be stored as HARQ feedback and ACK or NACK after arranging.Base station apparatus 3 receives with PUSCH, decoded uplink data is saved to the harq buffer device of the HARQ process corresponding with this PUSCH, and preserves the up link license finally sent with the PDCCH of correspondence.

In addition, when mobile station apparatus 1 can use MIMO (multiple-input, multiple-output) SM (spatial reuse) with 1 PUSCH to send multiple uplink data (transmission block), HARQ process needs respectively with being identical quantity with the quantity of the uplink data (transmission block) sent with 1 PUSCH that harq buffer device is associated.

PDCCH (up link license) for the HARQ process of certain uplink component carrier both can different downlink component carrier have sent with each of the timing by HARQ process, also can only to make the downlink component carrier corresponding with each uplink component carrier to send.For the PHICH of the HARQ process of certain uplink component carrier, to send to the downlink component carrier that have finally transmitted the PDCCH (up link is permitted) relevant with this HARQ process.

Such as, in Figure 5, mobile station apparatus 1 receives to the PDCCH of the 0th initialization that HARQ process is relevant (up link is permitted) being used to indicate in the subframe of the n-th down link, and carries out the initialization to the 0th PUSCH that HARQ process is relevant according to this PDCCH (up link license) in the subframe of the n-th+4 up links.Mobile station apparatus 1 receives to the 0th PHICH and PDCCH that HARQ process is relevant (up link is permitted) in the subframe of the n-th+8 down links, and carries out and the initialization of the 0th PUSCH that HARQ process is relevant or re-transmission according to this PHICH or PDCCH (up link license) in the subframe of the (n+1)th 2 up links.

So, the subframe of corresponding with identical HARQ process down link and the subframe of up link have staggered 4ms (4 subframes, 4TTI).In addition, send with 8ms (8 subframes, 8TTI) interval for PHICH and PDCCH (up link license) of identical HARQ process and PUSCH.

In the HARQ process of up link of the present invention, first ACK or NACK shown in the HARQ indicator received using PHICH arrange as HARQ feedback by mobile station apparatus 1.Mobile station apparatus 1 when with PDCCH reception to be used to indicate PUSCH initialization up link license, do not determine the new uplink data sent with PUSCH with relying on ACK or NACK be set up as HARQ feedback, this uplink data is stored to harq buffer device, and the up link license received is stored, carry out the initialization of PUSCH according to the license of stored up link, and NACK is set is used as HARQ feedback.

Mobile station apparatus 1 when with PDCCH reception to be used to indicate PUSCH re-transmission up link license, the license of the up link of storage is not rewritten with relying on ACK or NACK be set up as HARQ feedback the up link license being covered into and receiving, according to rewriteeing the license of the up link after covering with the uplink data stored in PUSCH re-transmission harq buffer device, and NACK is set is used as HARQ feedback.Mobile station apparatus 1 is when harq buffer device is empty, do not rely on up link license indicate initialization or decide with indicating re-transmission to carry out with PUSCH the uplink data that sends, this uplink data is stored to harq buffer device, and the up link license received is stored, carry out the initialization of PUSCH according to the license of stored up link, and NACK is set is used as HARQ feedback.

Mobile station apparatus 1 when do not receive for PUSCH up link license and be provided with NACK be used as HARQ feedback, according to stored up link license, retransmit the uplink data stored in harq buffer device with PUSCH.Mobile station apparatus 1 is provided with ACK when being used as HARQ feedback in the up link license do not received for PUSCH, do not carry out the transmission of PUSCH and the uplink data that stores in the harq buffer device that manages this HARQ process keeps.

If the up link that mobile station apparatus 1 receives for the PUSCH of ULCC-1 in n-th subframe of the DLCC-1 of Fig. 5 is permitted, then according to the up link license received, in the n-th+4 subframes of ULCC-1, send PUSCH, and NACK is set is used as HARQ feedback.Before mobile station apparatus 1 receives the n-th+8 subframes for the PHICH of this PUSCH with DLCC-1 when deexcitation DLCC-1, mobile station apparatus 1 can not receive PHICH with DLCC-1 in the n-th+8 subframes.If now mobile station apparatus 1 still keeps arranging NACK and is used as HARQ feedback, then with the subframe ((n+4+8 × i) individual subframe: i is for integer) with the 0th up link that HARQ process is corresponding, continue the re-transmission of PUSCH according to the up link license received in the subframe of the n-th DLCC-1.

In order to avoid the re-transmission of so unwanted PUSCH, there are following means in the present invention.Fig. 6 is the flow chart of an example of the action representing mobile station apparatus 1 of the present invention.Mobile station apparatus 1 carries out the process of Fig. 6 by each HARQ process.If the process of HARQ process is started, then whether mobile station apparatus 1 downlink component carrier (namely, finally receiving the downlink component carrier that the up link for HARQ process is permitted) that judges to receive the PHICH for HARQ process is (step S100) if being activated.

Mobile station apparatus 1 is when being judged to be that the downlink component carrier received the PHICH for HARQ process is activated, receive PHICH, and ACK or NACK shown in HARQ indicator contained in the PHICH received is carried out arranging (step S101) as HARQ feedback.Then, mobile station apparatus 1 determines whether to detect up link license (step S103) mailing to this device.Mobile station apparatus 1 is when being judged to detect that up link is permitted, the up link license detected is stored, NACK is set and is used as HARQ feedback (step S104), and carry out initialization or the re-transmission (step S106) of PUSCH according to the up link license stored.

When mobile station apparatus 1 is judged to not detect that up link is permitted in step s 103, judge in ACK and NACK which carried out arranging (step S105) as HARQ feedback.Mobile station apparatus 1 is judged to be that NACK is set up as HARQ feedback in step S105, carry out the re-transmission (step S106) of PUSCH according to the license of stored up link.Mobile station apparatus 1 is judged to be that ACK is set up as HARQ feedback in step S105, does not carry out the transmission of PUSCH and the content of the harq buffer device corresponding with HARQ process is kept (step S107).

Mobile station apparatus 1 is after step S106 and step S107, in the subframe of the next down link corresponding with this HARQ process, be back to step S100 (step S108), judge whether the downlink component carrier to the PHICH for HARQ process receives is activated.

In the step s 100, mobile station apparatus 1 is being judged to be that receiving the downlink component carrier of PHICH is not activated, and when being namely deactivated, not receiving PHICH and arranges ACK and be used as HARQ feedback (step S102).When there is no to send the downlink component carrier that the up link for the HARQ process of this uplink component carrier permits among the downlink component carrier be activated, after mobile station apparatus 1 is provided with ACK in step s 102, be judged in step s 103 not detect that up link is permitted, in step S105, be judged to be that being provided with ACK is used as HARQ feedback, do not carry out the transmission of PUSCH in step s 107 and keep the content of the harq buffer device corresponding with HARQ process.

Have when can send downlink component carrier that the up link for the HARQ process of this uplink component carrier permits among the downlink component carrier be activated, base station apparatus 3 is by sending up link license with the downlink component carrier be activated that can send up link license, after mobile station apparatus 1 is provided with ACK in step s 102, be judged in step s 103 to detect that up link is permitted, initialization or the re-transmission of PUSCH can be carried out in step s 106 according to the up link license received and detect.

In addition, when once HARQ process not being used for the communication between base station apparatus when the harq buffer device be associated with HARQ process is empty or after the power supply connecting mobile station apparatus 1 yet or ACK as in its situations such as HARQ feedback is set up, in step S101, mobile station apparatus 1 can not receive the PHICH corresponding with this HARQ process.In addition, when receiving the up link license being used to indicate re-transmission after maintaining the content of harq buffer device in step s 107, the content of this harq buffer device can be retransmitted with PUSCH.Such as, base station apparatus 3 can with the downlink component carrier be activated to send up link license, deexcitation is carried out to the downlink component carrier of the transmission of permitting for up link, downlink component carrier after deexcitation is activated again, mobile station apparatus 1 is indicated to the re-transmission of PUSCH sent with the state after activating last time.

Fig. 7 is the schematic block diagram of the formation representing mobile station apparatus 1 of the present invention.As shown in the figure, mobile station apparatus 1 is configured to comprise: higher level's layer handling part 101, control part 103, acceptance division 105, sending part 107 and dual-mode antenna 109.In addition, higher level's layer handling part 101 is configured to comprise: wireless heterogeneous networks portion 1011, HARQ control part 1013 and HARQ storage part 1015.In addition, acceptance division 105 is configured to comprise: lsb decoder 1051, demodulation section 1053, multiplexing separation unit 1055, wireless receiving section 1057 and channel measurement portion 1059.In addition, sending part 107 is configured to comprise: coding unit 1071, modulation portion 1073, multiplexing unit 1075, wireless transmission part 1077 and uplink reference signals generating unit 1079.

The data of the up link that the operation by user etc. generates by higher level's layer handling part 101 or RRC signal or MACCE export sending part 107 to.In addition, higher level's layer handling part 101 carries out the process of M AC (MAC: M AC) layer, PDCP (PacketDataConvergenceProtocol:PDCP) layer, wireless spread-spectrum technology (RadioLinkControl:RLC) layer, wireless heterogeneous networks (RadioResourceControl:RRC) layer.In addition, higher level's layer handling part 101, based on the down link control information etc. arrived with PDCCH reception, generates control information to carry out the control of acceptance division 105 and sending part 107, and exports control part 103 to.The wireless heterogeneous networks portion 1011 that higher level's layer handling part 101 possesses carries out the management of the various set informations of this device.Such as, wireless heterogeneous networks portion 1011 carries out the management of the RNTI of C-RNTI etc.In addition, wireless heterogeneous networks portion 1011 generates the information that is configured on each channel of up link and exports sending part 107 to.

Wireless heterogeneous networks portion 1011 is the downlink component carrier that sets and uplink component carrier and to be activated by activation command etc. or downlink component carrier after deexcitation manages to the RRC signal by notifying from base station apparatus 3.Wireless heterogeneous networks portion 1011 manages the downlink component carrier distributing the down link for set downlink component carrier and permit for the up link of set uplink component carrier to be configured.

The HARQ control part 1013 that higher level's layer handling part 101 possesses carries out the management of the HARQ process of up link.The HARQ storage part 1015 that higher level's layer handling part 101 possesses, has the harq buffer device be associated separately with the HARQ process of the up link managed by HARQ control part 1013.HARQ storage part 1015 is to permit with the up link that HARQ process is associated separately or HARQ feedback (ACK or NACK) stores.In addition, the HARQ process of down link does not associate with the present invention, and description will be omitted.

HARQ control part 1013 carries out following action by each HARQ process.The uplink data sent with PUSCH (transmission block) is inputed to harq buffer device by HARQ control part 1013, and make ACK or NACK shown in HARQ indicator that receive with the PHICH inputted from acceptance division 105 and with PDCCH reception to up link license be stored in HARQ storage part 1015.HARQ control part 1013 is based on ACK or NACK be stored in HARQ storage part 1015 and up link license, and the flow chart according to Fig. 6 carries out the control of HARQ.

The transmission uplink component carrier of PUSCH and the numbering (regularly) of subframe are set up corresponding with HARQ process by HARQ control part 1013.HARQ control part 1013 is among the multiple PHICH in the downlink component carrier finally receiving up link license, according to the distribution of the Physical Resource Block of PUSCH and to PUSCH carry out the relevant up link of the cyclic shift of time-multiplexed uplink reference signals permit in contained information, decide the PHICH corresponding with this HARQ process.

HARQ control part 1013, according to contained uplink carrier designator in up link license and the numbering (regularly) receiving the subframe that this up link is permitted, decides the received HARQ process corresponding to up link license.When not comprising uplink carrier designator in up link license, HARQ control part 1013, according to the numbering (regularly) of the downlink component carrier and subframe that receive the license of this up link, decides the received HARQ process corresponding to up link license.

Control part 103, based on the control information from higher level's layer handling part 101, generates the control signal of the control for carrying out acceptance division 105 and sending part 107.Control part 103 exports the control signal generated to acceptance division 105 and sending part 107, carries out the control of acceptance division 105 and sending part 107.Acceptance division 105 according to the control signal inputted from control part 103, the Received signal strength received from base station apparatus 3 via dual-mode antenna 109 is separated, demodulation, decoding, and export decoded information to higher level's layer handling part 101.

The signal of the down link received via dual-mode antenna 109 is transformed into intermediate frequency (down conversion: downcovert) by wireless receiving section 1057, remove unwanted frequency component, control amplification stage and maintain suitable level to make signal level, carry out quadrature demodulation based on the in-phase component of the signal received and quadrature component, and the analog signal after quadrature demodulation is transformed into digital signal.Wireless receiving section 1057 removes the part being equivalent to protect interval (GuardInterval:GI) from the digital signal after conversion, and carries out to the signal after eliminating protection interval the signal that fast fourier transform (FastFourierTransform:FFT) extracts frequency domain.

The signal extracted is separated into PHICH, PDCCH, PDSCH and downlink reference signal by multiplexing separation unit 1055 respectively.In addition, this separation distributes based on following line link and assignment information of the Radio Resource of notice etc. and carrying out.In addition, multiplexing separation unit 1055, according to the estimated value of the propagation path inputted from channel measurement portion 1059, carries out the compensation of the propagation path of PHICH, PDCCH and PDSCH.In addition, multiplexing separation unit 1055 exports isolated downlink reference signal to channel measurement portion 1059.

Demodulation section 1053 couples of PHICH carry out the demodulation of BPSK (binary phase shift keying) modulation system, and export to lsb decoder 1051.Lsb decoder 1051 is decoded to the PHICH mailing to this device, and exports decoded HARQ indicator to higher level's layer handling part 101.Demodulation section 1053 couples of PDCCH carry out the demodulation of QPSK modulation system, and export to lsb decoder 1051.Lsb decoder 1051 attempts the blind Detecting of PDCCH, in the successful situation of blind Detecting, exports RNTI contained in decoded down link control information and down link control information to higher level's layer handling part 101.

Demodulation section 1053 couples of PDSCH carry out QPSK (quarternary phase-shift keying (QPSK)), 16QAM (quadrature amplitude modulation), 64QAM etc. distribute the modulation system notified demodulation with down link, and export to lsb decoder 1051.Lsb decoder 1051 is decoded based on the information relevant to encoding rate notified with down link control information, and is exported by decoded down link data (transmission block) superior layer handling part 101.

Channel measurement portion 1059 is measured the path loss of down link or the state of channel according to the downlink reference signal inputted from multiplexing separation unit 1055, and by the State-output of the path loss measured or channel to higher level's layer handling part 101.In addition, channel measurement portion 1059 calculates the estimated value of the propagation path of down link according to downlink reference signal, and exports multiplexing separation unit 1055 to.

Sending part 107 generates uplink reference signals according to the control signal inputted from control part 103, the uplink data (transmission block) inputted from higher level's layer handling part 101 is encoded and modulated, carry out multiplexing to PUCCH, PUSCH and the uplink reference signals that generated, and be sent to base station apparatus 3 via dual-mode antenna 109.Coding unit 1071 carries out the coding such as convolutional encoding, block forecast to the uplink control information inputted from higher level's layer handling part 101, and carries out Turbo coding based on the information relevant to encoding rate notified with down link control information to uplink data.Modulation portion 1073 with the modulation system notified with down link control information of BPSK, QPSK, 16QAM, 64QAM etc. or by each channel predetermined modulation system, the coded-bit inputted from coding unit 1071 is modulated.

Uplink reference signals generating unit 1079 generates with predetermined rule and (physicalcellidentity:PCI is called CellID (community ID) etc. based on the physical cell identifier for identifying base station apparatus 3.), the bandwidth of collocating uplink link reference signal, permit the sequence that cyclic shift etc. is asked for, base station apparatus 3 is known that notifies with up link.Multiplexing unit 1075 is according to the control signal inputted from control part 103, carry out discrete Fourier transform (DFT) (DiscreteFourierTransform:DFT) after being reset concurrently by the modulation symbol of PUSCH, and carry out multiplexing to the signal of PUCCH and PUSCH with the uplink reference signals generated.

Invert fast fourier transformation (InverseFastFourierTransform:IFFT) is carried out to the signal after multiplexing in wireless transmission part 1077, carry out the modulation of SC-FDMA mode, to the SC-FDMA symbol Additional guard intervals after SC-FDMA modulation, generate the digital signal of base band, the digital signal conversion of base band is become analog signal, in-phase component and the quadrature component of intermediate frequency is generated from analog signal, remove the frequency component unnecessary for intermediate frequency, the signal of intermediate frequency is converted the signal that (up-conversion: upconvert) becomes high frequency, remove unnecessary frequency component, and after power amplification, export dual-mode antenna 109 to send.

Fig. 8 is the schematic block diagram of the formation representing base station apparatus 3 of the present invention.As shown in the figure, base station apparatus 3 is configured to comprise: higher level's layer handling part 301, control part 303, acceptance division 305, sending part 307 and dual-mode antenna 309.In addition, higher level's layer handling part 301 is configured to comprise: wireless heterogeneous networks portion 3011, HARQ control part 3013 and HARQ storage part 3015.In addition, acceptance division 305 is configured to comprise: lsb decoder 3051, demodulation section 3053, multiplexing separation unit 3055, wireless receiving section 3057 and channel measurement portion 3059.In addition, sending part 307 is configured to comprise: coding unit 3071, modulation portion 3073, multiplexing unit 3075, wireless transmission part 3077 and downlink reference signal generating unit 3079.

Higher level's layer handling part 301 carries out the process of M AC (MAC: M AC) layer, PDCP (PacketDataConvergenceProtocol:PDCP) layer, wireless spread-spectrum technology (RadioLinkControl:RLC) layer, wireless heterogeneous networks (RadioResourceControl:RRC) layer.In addition, higher level's layer handling part 301 generates control information to carry out the control of acceptance division 305 and sending part 307, and exports control part 303 to.The wireless heterogeneous networks portion 3011 that higher level's layer handling part 301 possesses generates or obtains from superior node the information (transmission block), RRC signal, the MACCE that are configured at the PDSCH of down link, and exports sending part 307 to.In addition, wireless heterogeneous networks portion 3011 carries out the management of the various set informations of each mobile station apparatus 1.Such as, wireless heterogeneous networks portion 3011 carries out management mobile station apparatus 1 being distributed to the RNTI such as C-RNTI.

Wireless heterogeneous networks portion 3011 carries out the separately set downlink component carrier of mobile station apparatus 1 and uplink component carrier and activates or the management of downlink component carrier after deexcitation.3011 pairs, wireless heterogeneous networks portion mobile station apparatus 1 separately setting, for the downlink component carrier that communicates and uplink component carrier, and controls sending part 307 via control part 303 and makes to notify the information relevant to this setting with RRC signal.

3011 pairs, wireless heterogeneous networks portion mobile station apparatus 1 sets the downlink component carrier be configured the PDCCH for the downlink component carrier for communicating and uplink component carrier separately, and controls sending part 307 via control part 303 and make to notify the information relevant to this setting with RRC signal.Wireless heterogeneous networks portion 3011 controls sending part 307 via control part 303 and makes to notify activation command with PDCCH or MACCE separately to mobile station apparatus 1.

The HARQ control part 3013 that higher level's layer handling part 301 possesses, carries out the management of the HARQ process of the respective up link of mobile station apparatus 1.The HARQ storage part 3015 that higher level's layer handling part 301 possesses, has each self-corresponding multiple harq buffer device with the HARQ process of the up link managed by HARQ control part 3013.In addition, the HARQ process of down link does not associate with the present invention, and description will be omitted.The uplink data (transmission block) received with the PUSCH inputted from acceptance division 305 is inputed to harq buffer device by HARQ control part 3013, and uses the error detection code (cyclic redundancy check (CRC) code) be additional in uplink data to judge that whether the decoding of uplink data is successful.

HARQ control part 3013 is under the decoding being judged to be uplink data successfully situation, generate the HARQ indicator representing ACK, and be judged to be in the kaput situation of the decoding of uplink data, generate the HARQ indicator representing NACK, and export sending part 307 to.HARQ control part 3013 is being judged to be in the kaput situation of the decoding of uplink data, can change allocation of radio resources or the information relevant to modulation system and encoding rate, and control via control part 303 re-transmission that sending part 307 makes to send the information after comprising change that is used to indicate.

HARQ control part 3013 is when have input the uplink data through retransmitting in mobile station apparatus 1 from acceptance division 305, the uplink data be kept in harq buffer device and the uplink data after retransmitting are synthesized, judges that whether the decoding of uplink data is successful.HARQ control part 3013 is by the numbering (regularly) of the uplink component carrier and subframe that are sent PUSCH by mobile station apparatus 1, set up corresponding with the numbering of HARQ process.

HARQ control part 3013 is among the multiple PHICH in the downlink component carrier that certain HARQ process be have finally transmitted to up link license, according to the distribution of the Physical Resource Block of PUSCH and to PUSCH carry out the relevant up link of the cyclic shift of time-multiplexed uplink reference signals permit in contained information, decide the PHICH for sending the ACK/NACK corresponding with this HARQ process.

Control part 303, based on the control information from higher level's layer handling part 301, generates the control signal of the control for carrying out acceptance division 305 and sending part 307.The control signal generated is exported to acceptance division 305 and sending part 307 to carry out the control of acceptance division 305 and sending part 307 by control part 303.

Acceptance division 305 according to the control signal inputted from control part 303, to being separated from the Received signal strength that mobile station apparatus 1 receives via dual-mode antenna 309, demodulation, decoding, and export decoded information to higher level's layer handling part 301.The signal of the up link received via dual-mode antenna 309 is converted (frequency reducing conversion: downcovert) to intermediate frequency by wireless receiving section 3057, remove unwanted frequency component, control amplification stage so that signal level is maintained suitable level, carry out quadrature demodulation based on the in-phase component of the signal received and quadrature component, and the analog signal after quadrature demodulation is transformed into digital signal.Wireless receiving section 3057 removes the part being equivalent to protect interval (GuardInterval:GI) from the digital signal after conversion.Wireless receiving section 3057 carries out fast fourier transform (FastFourierTransform:FFT) to removing the signal after protecting interval, extracts the signal of frequency domain and exports multiplexing separation unit 3055 to.

The Signal separator inputted from wireless receiving section 3057 is become the signals such as PUCCH, PUSCH, uplink reference signals by multiplexing separation unit 3055.In addition, this separation is decided by wireless heterogeneous networks portion 3011 by base station apparatus 3 in advance, carries out based on the assignment information informing Radio Resource contained in the up link license of each mobile station apparatus 1.In addition, multiplexing separation unit 3055, according to the estimated value of the propagation path inputted from channel measurement portion 3059, carries out the compensation of the propagation path of PUCCH and PUSCH.In addition, multiplexing separation unit 3055 exports isolated uplink reference signals to channel measurement portion 3059.

Demodulation section 3053 couples of PUSCH carry out inverse discrete Fourier transformer inverse-discrete (InverseDiscreteFourierTransform:IDFT) and obtain modulation symbol, and use BPSK (binary phase shift keying), QPSK, 16QAM, 64QAM etc. predetermined or this device prenotice to the modulation system of each mobile station apparatus 1 with up link license, the modulation symbol of PUCCH and PUSCH is carried out separately to the demodulation of Received signal strength.

Lsb decoder 3051 is with predetermined coded system, predetermined or permitted the encoding rate of prenoticing mobile station apparatus 1 with up link by this device, the coded-bit of PUCCH and PUSCH after demodulation is decoded, and decoded uplink data and uplink control information superior layer handling part 301 are exported.When PUSCH retransmits, lsb decoder 3051 uses the coded-bit kept from the harq buffer device of higher level's layer handling part 301 input and the coded-bit received to decode.Channel measurement portion 3059 is measured the estimated value of propagation path, the quality etc. of channel according to the uplink reference signals inputted from multiplexing separation unit 3055, and exports multiplexing separation unit 3055 and higher level's layer handling part 301 to.

Sending part 307 generates downlink reference signal according to the control signal inputted from control part 303, the HARQ indicator inputted from higher level's layer handling part 301, down link control information, down link data are encoded and modulated, carry out multiplexing to PHICH, PDCCH, PDSCH and downlink reference signal, and send signal via dual-mode antenna 309 pairs of mobile station apparatus 1.

Coding unit 3071 is for the HARQ indicator, down link control information and the down link data that input from higher level's layer handling part 301, use the predetermined coded systems such as block forecast, convolutional encoding, Turbo coding to encode, or use the coded system determined by wireless heterogeneous networks portion 3011 to encode.Modulation portion 3073 with BPSK, QPSK, 16QAM, 64QAM etc. predetermined or the modulation system that determined by wireless heterogeneous networks portion 3011 coded-bit inputted from coding unit 3071 is modulated.Downlink reference signal generating unit 3079 generates with predetermined rule and is used as downlink reference signal based on the sequence that physical cell identifier (PCI) etc. is asked for, mobile station apparatus 1 is known for identifying base station apparatus 3.Multiplexing unit 3075 is carried out multiplexing to each channel after modulation and the downlink reference signal generated.

Invert fast fourier transformation (InverseFastFourierTransform:IFFT) is carried out to the modulation symbol after multiplexing in wireless transmission part 3077, carry out the modulation of OFDM mode, to the OFDM symbol Additional guard intervals after OFDM modulation, generate the digital signal of base band, the digital signal conversion of base band is become analog signal, in-phase component and the quadrature component of intermediate frequency is generated from analog signal, remove the frequency component unnecessary for intermediate frequency, the signal of intermediate frequency is converted the signal that (up-conversion: upconvert) becomes high frequency, remove unnecessary frequency component, and after power amplification, export dual-mode antenna 309 to send.

So, according to the present invention, use multiple downlink component carrier to carry out in the wireless communication system communicated at mobile station apparatus 1 and base station apparatus 3, when being deactivated the downlink component carrier received for the PHICH sending to the HARQ indicator of the uplink data of base station apparatus 3 (transmission block) to be configured by mobile station apparatus 1, mobile station apparatus 1 does not receive HARQ indicator with PHICH, and ACK is set in the HARQ process of correspondence is used as HARQ feedback, base station apparatus 3 is judged as: mobile station apparatus 1 does not receive the HARQ indicator be configured on PHICH, and in the HARQ process of correspondence, be provided with ACK be used as HARQ feedback.

In addition, even if the present invention is when using RRC signal to eliminate the downlink component carrier receiving PHICH from the setting of the downlink component carrier for communicating, also same effect can be obtained.Namely, when eliminating the downlink component carrier receiving PHICH from the downlink component carrier for communicating, mobile station apparatus 1 arranges ACK for the HARQ process of correspondence.

In addition, although in the step S100 and S102 of Fig. 6, when downlink component carrier is deactivated with the timing that mobile station apparatus 1 receives PHICH, mobile station apparatus 1 arranges ACK, but also can be the time point that mobile station apparatus 1 sends PUSCH in the step S106 of Fig. 6, be aware of before receiving the PHICH for this PUSCH and receive the downlink component carrier of PHICH when being deactivated, mobile station apparatus 1 arranges ACK after step s 106.Thus, mobile station apparatus 1 can be avoided departing from when receiving the downlink component carrier of PHICH and being deactivated the control of base station apparatus 3 and carry out the re-transmission of unwanted PUSCH, thus can carry out the control of the re-transmission of PUSCH efficiently.

In addition, can also in following situation application the present invention: when the downlink component carrier received the PHICH for certain uplink component carrier not permit to the up link for this uplink component carrier the downlink component carrier be configured, use RRC signal sets.Namely, when eliminating the downlink component carrier receiving PHICH in the downlink component carrier of permitting from collocating uplink link, mobile station apparatus 1 arranges ACK for the HARQ process of correspondence.

Such as, in fig. 2, when permitting that the downlink component carrier sent is set to DLCC-1 to the up link for ULCC-1, the up link that mobile station apparatus 1 receives for ULCC-1 with DLCC-1 is permitted and PHICH.Before mobile station apparatus 1 receives PHICH with DLCC-1, base station apparatus 3 is decided to be DLCC-2 by permitting that the downlink component carrier sent is reseted to the up link for ULCC-1, when mobile station apparatus 1 applies this setting, mobile station apparatus 1 receives the PHICH for ULCC-1 with DLCC-1, monitor that the up link for ULCC-1 is permitted with DLCC-2, thus the load of the reception process of mobile station apparatus 1 increases.

So, owing to passing through application the present invention, before mobile station apparatus 1 receives PHICH with DLCC-1, reset be decided to be DLCC-2 by being sent the downlink component carrier of permitting for the up link of ULCC-1 by base station apparatus 3, and when mobile station apparatus 1 applies this setting, mobile station apparatus 1 arranges ACK for the HARQ process of ULCC-1, do not carry out the reception process of the PHICH of DLCC-1, and only monitor the up link license of DLCC-2, therefore can alleviate the load of the reception process of mobile station apparatus 1.

(the 2nd execution mode)

Below, the 2nd execution mode of the present invention is described in detail with reference to accompanying drawing.

In the 2nd execution mode of the present invention, corresponding to uplink component carrier, when the downlink component carrier be configured PHICH (HARQ indicator) and PDCCH (up link license) is all deactivated, the content of mobile station apparatus 1 to the whole harq buffer device be associated with this uplink component carrier is removed (emptying), base station apparatus 3 is corresponding to uplink component carrier mobile station apparatus 1 deexcitation, when whole downlink component carrier that PHICH (HARQ indicator) and PDCCH (up link license) is configured, be judged as that the content of mobile station apparatus 1 to the whole harq buffer device be associated with this uplink component carrier is removed (emptying).

In addition, can also show as: when corresponding to certain uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to one deexcitation corresponding with uplink component carrier, the downlink component carrier that configures HARQ indicator, the content of the whole harq buffer device be associated with this uplink component carrier is removed (emptying).

Such as, in fig. 2, when being set to only be configured in DLCC-1 for the up link license of ULCC-1, the content of mobile station apparatus 1 pair whole harq buffer device be associated with ULCC-1 when DLCC-1 is deactivated is removed.Such as, in fig. 2, when mobile station apparatus 1 is set in order to by the up link permission configuration for ULCC-1 in DLCC-1, DLCC-2 and DLCC-3, the content of mobile station apparatus 1 pair whole harq buffer device be associated with ULCC-1 when DLCC-1, DLCC-2 and DLCC-3 are all deactivated is removed.

So, mobile station apparatus 1 is by removing the content of the harq buffer device be associated with HARQ process that can not receive corresponding PHICH (HARQ indicator) and PDCCH (up link license), thus even if the HARQ feedback that NACK is used as HARQ process is set, also do not carry out the re-transmission of PUSCH.

In addition, even if although the downlink component carrier of possibility that is corresponding to uplink component carrier, that there is configuration HARQ indicator and up link license is all deactivated, also in HARQ process, determine the transmission of PUSCH, but also when also not carrying out the transmission of PUSCH (when there is the transmission of the PUSCH of suspension (pending)), the content removing harq buffer device afterwards of this PUSCH can have sent.

Such as, mobile station apparatus 1 can from receive up link license play based on receive up link license send PUSCH till during (4ms, 4 subframes, 4TTI), the downlink component carrier receiving up link license has been when being deactivated, from the content removing harq buffer device after have sent a PUSCH.By so to receive PHICH (HARQ indicator) or PDCCH (up link license) reality after 4 subframes send before PUSCH be called the PUSCH of suspension.

Fig. 9 is the flow chart of an example of the action of the mobile station apparatus 1 representing the 2nd execution mode of the present invention.Mobile station apparatus 1 carries out the process of Fig. 9 by each HARQ process.If process is started, then whether what mobile station apparatus 1 judgement was associated with certain uplink component carrier is deactivated (step S200) the downlink component carrier that PHICH (HARQ indicator) and the PDCCH (up link is permitted) for HARQ process is configured.

When the downlink component carrier be configured PHICH (HARQ indicator) and the PDCCH (up link is permitted) for HARQ process that mobile station apparatus 1 is judged to be associated with certain uplink component carrier in step s 200 is all deactivated, determine whether the transmission (step S201) of the PUSCH that there is suspension.

When mobile station apparatus 1 is judged to be the transmission of the PUSCH that there is suspension in step s 201, after the transmission of the PUSCH suspended (step S202), remove the content (step S203) of the harq buffer device be associated with this uplink component carrier.When mobile station apparatus 1 is judged to be the transmission of the PUSCH that there is not suspension in step s 201, advance to step S203, remove the content of the harq buffer device be associated with this uplink component carrier.

In addition, can be, that if mobile station apparatus 1 is judged to be associated with certain uplink component carrier in step s 200, be all deactivated the downlink component carrier that PHICH (HARQ indicator) and the PDCCH (up link is permitted) for HARQ process is configured, then do not carry out step S201 and step S202, and in subframe afterwards, cancel the transmission of the PUSCH of this uplink component carrier, and remove the content (step S203) of harq buffer device.After step S203, mobile station apparatus 1 ends process.When having at least one not to be deactivated among the downlink component carrier be configured PHICH (HARQ indicator) and the PDCCH (up link is permitted) for HARQ process that mobile station apparatus 1 is judged to be associated with uplink component carrier in step s 200, end process.

If the wireless communication system involved by the 2nd execution mode and the wireless communication system involved by the 1st execution mode are compared, then higher level's layer handling part 101 of mobile station apparatus 1 is different.And the formation that other inscape has and function identical with the 1st execution mode, therefore omit the explanation of the function identical with the 1st execution mode.

When the downlink component carrier be configured the PHICH (HARQ indicator) for uplink component carrier is deactivated, the HARQ control part 1013 of higher level's layer handling part 101 of the mobile station apparatus 1 of the 2nd execution mode does not arrange ACK for HARQ process and is used as HARQ feedback.And, when the downlink component carrier be configured PHICH (HARQ indicator) and the PDCCH (up link license) for uplink component carrier is all deactivated, the content of the harq buffer device be associated with this uplink component carrier that HARQ control part 1013 pairs of HARQ storage parts 1015 have is removed.

In addition, mobile station apparatus 1 can correspond to how deexcitation downlink component carrier, changes the timing of removing the content of harq buffer device.Mobile station apparatus 1 uses: from receiving after the time given activation command (such as, 4ms, 4 subframes, 4TTI) method of deexcitation is carried out (hereinafter referred to as explicit deexcitation to the downlink component carrier being notified of the communication being not used in down link with activation command.), the given time is have passed through (such as from activating with activation command downlink component carrier, 100ms, 100 subframes, when 100TTI), downlink component carrier is carried out to the method for deexcitation, the given time is have passed through (such as from finally receiving PDCCH or PDSCH with the downlink component carrier after activating, 10ms, 10 subframes, when 10TTI), the method for deexcitation is carried out (below to downlink component carrier, implicit expression deexcitation is called by from the method for carrying out beyond the such method of deexcitation after receiving the time given activation command.)。

Base station apparatus 3 is when wanting the downlink component carrier that should be deactivated after the given time based on implicit expression deexcitation to continue the state being maintained in activation, activation command is informed to mobile station apparatus 1, or to want the downlink component carrier of the state continuing to be maintained in activation to send PDCCH or PDSCH to mobile station apparatus 1.Mobile station apparatus 1 possess to from the time activated with activation command downlink component carrier through the timer that measures and to the timer measured from the process of the time finally received with the downlink component carrier after activating PDCCH or PDSCH, when notified activation command, or when receiving PDCCH or PDSCH, those timers of the downlink component carrier for correspondence are resetted.Such as, mobile station apparatus 1 can when explicit deexcitation, the content of harq buffer device is removed in deexcitation during downlink component carrier, and when implicit expression deexcitation, have passed through the given time from deexcitation after downlink component carrier, remove the content of harq buffer device.

Thus, the communication (re-transmission of PUSCH) continuing up link whether is wanted to have nothing to do with base station apparatus 3, even if activation command inerrably can not informed to mobile station apparatus 1 or can not by PDCCH, PDSCH suitably send under the prerequisite of mobile station apparatus 1 by mobile station apparatus 1 by implicit expression deexcitation make a return journey have activated downlink component carrier time, mobile station apparatus 1 still during the given time in remain the content of harq buffer device, therefore, base station apparatus 3 activates the downlink component carrier after deexcitation by using activation command, and send with the downlink component carrier after activating the up link license being used to indicate re-transmission, mobile station apparatus 1 can be made to perform the re-transmission of PUSCH at once.

Thus, mobile station apparatus 1 can be avoided departing from when the downlink component carrier received PHICH (HARQ indicator) and PDCCH (up link license) is all deactivated the control of base station apparatus 3 and carry out the re-transmission of unwanted PUSCH, thus can carry out the control of the re-transmission of PUSCH efficiently.

In addition, even if when using RRC signal the downlink component carrier received PHICH (HARQ indicator) and PDCCH (up link license) all to be got rid of from the setting of the downlink component carrier for communicating, by application, the present invention also can obtain same effect.Namely, when the downlink component carrier that will receive PHICH (HARQ indicator) and PDCCH (up link license) is all got rid of from setting, mobile station apparatus 1 removes the content of the harq buffer device be associated with this uplink component carrier.

In addition, can also in following situation application the present invention: when the downlink component carrier received the PHICH for certain uplink component carrier not permit to the up link for this uplink component carrier the downlink component carrier be configured, use RRC signal sets.Namely, when eliminating the downlink component carrier receiving PHICH in the downlink component carrier of permitting from collocating uplink link, mobile station apparatus 1 arranges ACK for the HARQ process of correspondence.

Such as, in fig. 2, when permitting that the downlink component carrier sent is set to DLCC-1 to the up link for ULCC-1, the up link that mobile station apparatus 1 receives for ULCC-1 with DLCC-1 is permitted and PHICH.Before mobile station apparatus 1 receives PHICH with DLCC-1, base station apparatus 3 is decided to be DLCC-2 by permitting that the downlink component carrier sent is reseted to the up link for ULCC-1, when mobile station apparatus 1 applies this setting, mobile station apparatus 1 receives the PHICH for ULCC-1 with DLCC-1, permit with the up link that DLCC-2 monitors for ULCC-1, thus the load of the reception process of mobile station apparatus 1 increases.

So, owing to passing through application the present invention, before mobile station apparatus 1 receives PHICH with DLCC-1, reseted by base station apparatus 3 be decided to be DLCC-2 by sending the downlink component carrier of permitting for the up link of ULCC-1, and when mobile station apparatus 1 applies this setting, mobile station apparatus 1 removes the content of the harq buffer device be associated with the HARQ process of ULCC-1, do not carry out the reception process of the PHICH of DLCC-1, and only monitor the up link license of DLCC-2, therefore can alleviate the load of the reception process of mobile station apparatus 1.

A (), in order to reach above-mentioned object, the present invention possesses following such means.Namely, wireless communication system of the present invention is that a kind of mobile station apparatus uses multiple downlink component carrier to carry out with base station apparatus the wireless communication system communicated, it is characterized in that, when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, described mobile station apparatus does not receive described HARQ indicator and arranges ACK, and described base station apparatus is judged as: described mobile station apparatus does not receive described HARQ indicator and is provided with ACK.

B () in addition, wireless communication system of the present invention is that a kind of mobile station apparatus uses multiple downlink component carrier to carry out with base station apparatus the wireless communication system communicated, it is characterized in that, when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, described mobile station apparatus does not receive described HARQ indicator, and the content removed for the buffer of described uplink data, described base station apparatus is judged as: described mobile station apparatus does not receive described HARQ indicator and removes the content of the buffer for described uplink data.

C () in addition, mobile station apparatus of the present invention is that a kind of multiple downlink component carrier and base station apparatus of using carries out the mobile station apparatus communicated, it is characterized in that, when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, does not receive described HARQ indicator and ACK is set.

D () in addition, mobile station apparatus of the present invention is that a kind of multiple downlink component carrier and base station apparatus of using carries out the mobile station apparatus communicated, it is characterized in that, when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, do not receive described HARQ indicator, and remove the content for the buffer of described uplink data.

E () in addition, base station apparatus of the present invention is that a kind of multiple downlink component carrier and mobile station apparatus of using carries out the base station apparatus communicated, it is characterized in that, when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and is provided with ACK.

F () in addition, base station apparatus of the present invention is that a kind of multiple downlink component carrier and mobile station apparatus of using carries out the base station apparatus communicated, it is characterized in that, when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and removes the content of the buffer for described uplink data.

G () in addition, wireless communications method of the present invention is a kind of wireless communications method coming to carry out with base station apparatus using in the mobile station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, does not receive described HARQ indicator and ACK is set.

H () in addition, wireless communications method of the present invention is a kind of wireless communications method coming to carry out with base station apparatus using in the mobile station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, do not receive described HARQ indicator, and remove the content for the buffer of described uplink data.

I () in addition, wireless communications method of the present invention is a kind of wireless communications method coming to carry out with mobile station apparatus using in the base station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and is provided with ACK.

J () in addition, wireless communications method of the present invention is a kind of wireless communications method coming to carry out with mobile station apparatus using in the base station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and removes the content of the buffer for described uplink data.

K () in addition, integrated circuit of the present invention is a kind of integrated circuit coming to carry out with base station apparatus using in the mobile station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, does not receive described HARQ indicator and ACK is set.

L () in addition, integrated circuit of the present invention is a kind of integrated circuit coming to carry out with base station apparatus using in the mobile station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when the downlink component carrier received the HARQ indicator for the uplink data sending to described base station apparatus is deactivated, do not receive described HARQ indicator, and remove the content for the buffer of described uplink data.

M () in addition, integrated circuit of the present invention is a kind of integrated circuit coming to carry out with mobile station apparatus using in the base station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and is provided with ACK.

N () in addition, integrated circuit of the present invention is a kind of integrated circuit coming to carry out with mobile station apparatus using in the base station apparatus communicated in the multiple downlink component carrier of use, it is characterized in that, there are following means: when to when being deactivated for the downlink component carrier sending to the HARQ indicator of the uplink data of described base station apparatus to receive by described mobile station apparatus, be judged as: described mobile station apparatus does not receive described HARQ indicator and removes the content of the buffer for described uplink data.

In base station apparatus 3 involved in the present invention and mobile station apparatus 1, the program of action can be the program (making computer play the program of function) CPU (central processing unit) etc. being controlled to the function realizing above-mentioned execution mode involved in the present invention.And, information by these device process is accumulated provisionally when it processes in RAM (random access memory), thereafter, be contained in various ROM or HDD (hard disk drive) such as FlashROM (read-only memory), and read by CPU as required, carry out revising/writing.

In addition, a part for the mobile station apparatus 1 in above-mentioned execution mode, base station apparatus 3 can be realized by computer.In the case, can by the program being used for realizing this controlling functions is recorded in the recording medium of embodied on computer readable, computer system is read in be recorded in the program in this recording medium and is performed to realize.In addition, refer in this so-called " computer system ", be built in the computer system in mobile station apparatus 1 or base station apparatus 3, comprise the hardware such as OS and peripheral equipment.

In addition, " recording medium of embodied on computer readable " refers to, the storage device of the removable medium of floppy disk, photomagneto disk, ROM, CD-ROM etc., the hard disk be built in computer system etc.And then " recording medium of embodied on computer readable " can also comprise: short time as the order wire when carrying out transmission program via communication lines such as network or telephone line such as the Internets and dynamically keep the medium of program and program is kept the medium of a period of time program as the volatile memory of the inside computer system of the server become in the case or client.In addition, said procedure may be used for the part realizing aforesaid function, and then can also by carrying out combining with the program that recorded in computer system and can realize aforesaid function.

In addition, part or all of the mobile station apparatus 1 in above-mentioned execution mode, base station apparatus 3 can be implemented as typical integrated circuit and LSI.Each functional block of mobile station apparatus 1, base station apparatus 3 both can chip individually, also part or all can be carried out integrated come chip.In addition, the gimmick of integrated circuit is not limited to LSI, can also be realized by special circuit or general processor.In addition, when having occurred in the progress because of semiconductor technology replacing the technology of the integrated circuit of LSI, the integrated circuit based on this technology can also have been used.

Although describe one embodiment of the present invention above in detail with reference to accompanying drawing, concrete formation is not limited to above-mentioned execution mode, can carry out various design alterations etc. without departing from the spirit and scope of the invention.

Label declaration

1 (1A, 1B, 1C) mobile station apparatus

3 base station apparatus

101 higher level's layer handling part

103 control parts

105 acceptance divisions

107 sending parts

301 higher level's layer handling part

303 control parts

305 acceptance divisions

307 sending parts

1011 wireless heterogeneous networks portions

1013HARQ control part

1015HARQ storage part

3011 wireless heterogeneous networks portions

3013HARQ control part

3015HARQ storage part

Claims (11)

1., for a wireless communications method for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, and the feature of described wireless communications method is, comprising:

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, being set as only by when only a downlink component carrier is not used in the communication of down link described in corresponding to a described uplink component carrier, to be associated with the described downlink component carrier of the communication being set as being not used in described down link, step that the content of the harq buffer device of described uplink component carrier is removed.

2. a mobile station apparatus, use multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described mobile station apparatus is,

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, being set as only by when only a downlink component carrier is not used in the communication of down link described in corresponding to a described uplink component carrier, to be associated with the described downlink component carrier of the communication being set as being not used in described down link, the content of the harq buffer device of described uplink component carrier removes.

3. a wireless communication system, wherein, mobile station apparatus and base station apparatus use multiple downlink component carrier and multiple uplink component carrier to communicate, and the feature of described wireless communication system is,

Corresponding to a uplink component carrier of described multiple uplink component carrier, the downlink component carrier of collocating uplink link license is restricted to only one in described multiple downlink component carrier, described mobile station apparatus is being set as only by when only a downlink component carrier is not used in the communication of down link described in corresponding to a described uplink component carrier, to what be associated with the described downlink component carrier of the communication being set as being not used in described down link, the content of the harq buffer device of described uplink component carrier is removed,

Described base station apparatus is judged as: described mobile station apparatus is being set as, only by when only a downlink component carrier is not used in the communication of down link described in corresponding to a described uplink component carrier, removing the content of harq buffer device that be associated with the described downlink component carrier of the communication being set as being not used in described down link, described uplink component carrier.

4., for an integrated circuit for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, and the feature of described integrated circuit is to have:

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, being set as only by when only a downlink component carrier is not used in the communication of down link described in corresponding to a described uplink component carrier, to be associated with the described downlink component carrier of the communication being set as being not used in described down link, function that the content of the harq buffer device of described uplink component carrier is removed.

5., for a wireless communications method for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, and the feature of described wireless communications method is, comprising:

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, described in corresponding to a described uplink component carrier only deexcitation only a downlink component carrier time, to after described deexcitation described in only downlink component carrier be associated, step that the content of the harq buffer device of described uplink component carrier is removed.

6. wireless communications method according to claim 5, is characterized in that, comprising:

Time notified in the order by sending from described base station apparatus, downlink component carrier is carried out to the step of deexcitation.

7. wireless communications method according to claim 5, is characterized in that, comprising:

Notified and when have passed through the given time from activation downlink component carrier, the step of deexcitation is carried out to the described downlink component carrier after activating in the order by sending from described base station apparatus.

8. wireless communications method according to claim 5, is characterized in that, comprising:

When from receive with downlink component carrier have passed through the given time the physical downlink control channel that sends from described base station apparatus, the downlink component carrier receiving described physical downlink control channel is carried out to the step of deexcitation.

9. a mobile station apparatus, use multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, the feature of described mobile station apparatus is,

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, described in corresponding to a described uplink component carrier only deexcitation only a downlink component carrier time, to after described deexcitation described in only downlink component carrier be associated, the content of the harq buffer device of described uplink component carrier removes.

10. a wireless communication system, wherein, mobile station apparatus and base station apparatus use multiple downlink component carrier and multiple uplink component carrier to communicate, and the feature of described wireless communication system is,

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, described in described mobile station apparatus is corresponding to a described uplink component carrier only deexcitation only a downlink component carrier time, to with after described deexcitation described in only downlink component carrier be associated, the content of the harq buffer device of described uplink component carrier removes

Described base station apparatus is judged as: described in described mobile station apparatus is corresponding to a described uplink component carrier only deexcitation only a downlink component carrier time, remove with after described deexcitation described in only downlink component carrier be associated, the content of the harq buffer device of described uplink component carrier.

11. 1 kinds of integrated circuits for mobile station apparatus, this mobile station apparatus uses multiple downlink component carrier and multiple uplink component carrier to communicate with base station apparatus, and the feature of described integrated circuit is to have:

Corresponding to a uplink component carrier of described multiple uplink component carrier, that collocating uplink link is permitted downlink component carrier is restricted to only one in described multiple downlink component carrier, described in corresponding to a described uplink component carrier only deexcitation only a downlink component carrier time, to after described deexcitation described in only downlink component carrier be associated, function that the content of the harq buffer device of described uplink component carrier is removed.